kobject_add_internal failed for hci0 (error: -2 parent: bluetooth)
Bluetooth: Can't register HCI device
kobject_add_internal failed for rfkill97 (error: -2 parent: hci0)
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sysfs group 'power' not found for kobject 'hci0'
WARNING: CPU: 0 PID: 6319 at fs/sysfs/group.c:255 sysfs_remove_group+0x15b/0x1b0 fs/sysfs/group.c:253
kobject: 'rfkill102' (00000000365e740a): kobject_uevent_env
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 6319 Comm: syz-executor610 Not tainted 4.20.0-rc5+ #147
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
kobject: 'rfkill98' (000000003623aaa7): kobject_uevent_env
 panic+0x2ad/0x55c kernel/panic.c:188
kobject: 'hci2' (00000000b7a86a6f): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'rfkill98' (000000003623aaa7): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill98'
 __warn.cold.8+0x20/0x45 kernel/panic.c:540
kobject: 'rfkill102' (00000000365e740a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill102'
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
kobject: 'hci2' (00000000b7a86a6f): kobject_uevent_env
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969
RIP: 0010:sysfs_remove_group+0x15b/0x1b0 fs/sysfs/group.c:253
kobject: 'rfkill98' (000000003623aaa7): kobject_cleanup, parent           (null)
Code: 48 89 d9 49 8b 55 00 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 20 bf 37 88 e8 65 2a 4f ff <0f> 0b eb 92 e8 3c 23 c9 ff e9 d0 fe ff ff 48 89 df e8 2f 23 c9 ff
RSP: 0018:ffff8881c189f960 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff887c38c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8165e495 RDI: 0000000000000005
kobject: 'rfkill102' (00000000365e740a): kobject_cleanup, parent           (null)
RBP: ffff8881c189f988 R08: ffff8881ca584700 R09: ffffed103b5c5020
R10: ffffed103b5c5020 R11: ffff8881dae28107 R12: 0000000000000000
R13: ffff8881b2ffe9d0 R14: ffffffff887c3e60 R15: ffff8881b2ffe8a8
 dpm_sysfs_remove+0x58/0x60 drivers/base/power/sysfs.c:734
kobject: 'rfkill98' (000000003623aaa7): calling ktype release
 device_del+0x118/0xb70 drivers/base/core.c:2054
 hci_unregister_dev+0x3a2/0x990 net/bluetooth/hci_core.c:3355
kobject: 'rfkill98': free name
kobject: 'hci2' (00000000b7a86a6f): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2'
 vhci_release+0x76/0xf0 drivers/bluetooth/hci_vhci.c:354
 __fput+0x385/0xa30 fs/file_table.c:278
kobject: 'rfkill102' (00000000365e740a): calling ktype release
kobject: 'rfkill104' (00000000f4ea81c3): kobject_add_internal: parent: 'hci2', set: 'devices'
 ____fput+0x15/0x20 fs/file_table.c:309
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
kobject: 'rfkill104' (00000000f4ea81c3): kobject_uevent_env
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
kobject: 'rfkill102': free name
kobject: 'hci1' (000000006735304d): kobject_uevent_env
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x400dd0
kobject: 'rfkill104' (00000000f4ea81c3): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill104'
Code: 01 f0 ff ff 0f 83 b0 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d fd 18 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 84 0a 00 00 c3 48 83 ec 08 e8 3a 01 00 00
RSP: 002b:00007fffb5d32f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000400dd0
kobject: 'hci1' (000000006735304d): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1'
RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000025e2880 R11: 0000000000000246 R12: 000000000000d639
R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..